Telephone test set



FIG. 1 is a top and right side perspective view of the telephone test set, showing our new design;

FIG. 2 is a bottom and left side perspective view looking at the bottom and left side;

FIG. 3 is a bottom plan view;

FIG. 4 is an elevational view of the left side; and,

FIG. 5 is a top plan view. 

The ornamental design for telephone test set, as shown. 